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    <title>Document</title>
    <script>
    //1.把输入框作为赋值生成一个新的变量
    //2.把变量通过字串符拼接 通过alert弹出警示框把结果输出给用户
    var rddless = prompt('所的居住地址？')
    var dz = ('您的所在地为' + rddless)
    alert(dz)
    </script>
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